Given: m//n
Prove: m2 + m28 = 180

Given: M//nProve: M2 + M28 = 180

Answers

Answer 1

Interior Angle Theorem asserts that the alternate interior angles that result when two parallel lines are cut by a transversal are equivalent.

If m2 + m28 = 180 then we get ∠2 + ∠8 = 180°

What are the theorems for parallel lines?

Lines that are parallel to one another on a plane do not intersect or meet at any point.  They are always equidistant from one another and parallel. Non-intersecting lines are parallel lines.

Two lines are said to be parallel if a transversal and two matching angles it forms are congruent.

Verification of Parallel Lines

that which contradicts the alternate interior angles theorem.the opposite of the theorem relating comparable angles.the converse of the same-side interior angles hypothesis.alternative exterior angles theorem's opposite.

When two lines are intersected by a transversal and the opposing interior angles line up, the intersected lines are said to be parallel. Two lines are said to be parallel if they are divided by a transversal such that their opposing exterior angles are equivalent.

Therefore,

Given line m is parallel to line m

Interior Angle Theorem asserts that the alternate interior angles that result when two parallel lines are cut by a transversal are equivalent.

Alternate Exterior Angles are congruent if a transversal cuts two parallel lines. When a transversal cuts two parallel lines, the resulting angles are congruent.

Therefore, ∠2 = ∠6

∠2 + ∠4 = 180° ( Sum of the angles on a straight line is 180°)

∠6 + ∠8 = 180° ( Sum of the angles on a straight line is 180°)

∵  ∠2 = ∠6

∴ ∠6 + ∠8 = 180° ⇒ ∠2 + ∠8 = 180°

∠2 + ∠8 = 180° , Hence Proved.

To learn more about parallel lines, refer

https://brainly.com/question/27959436

#SPJ13


Related Questions

Find the probability of selecting a 10 or diamond when a card is drawn from a standard deck of cards.

Answers

The probability of selecting a 10 or Diamond when a card is drawn from a standard deck of cards is: 17/52

The question asks us to find the probability of picking a 10 or diamond from a deck of cards.

A standard deck of cards contains 52 cards in total.

The deck contains 4 "10s"

And the deck also contains 13 diamond cards.

Thus, we can find the probability of drawing a "10" as:

[tex]P(10)=\frac{n\text{umber of 10s}}{total\text{ number of cards in deck}}=\frac{4}{52}[/tex]

Similarly, we can find the probability of drawing a diamond as:

[tex]P(\text{diamond)}=\frac{n\text{umber of diamonds}}{total\text{ number of cards in deck}}=\frac{13}{52}[/tex]

Now that we have the individual probabilities, we can find the probability of drawing a 10 or a diamond using the OR probability:

[tex]\begin{gathered} P(A\text{ OR B)= P(A) + P(B)} \\ \text{where, A and B are independent events} \end{gathered}[/tex]

Therefore, we can solve the question. This is done below:

[tex]\begin{gathered} \text{Probability of selecting a 10 or a diamond P(10 OR Diamond)=} \\ P(10)+P(\text{Diamond)} \\ \\ \text{But P(10)=}\frac{4}{52} \\ P(\text{Diamond)}=\frac{13}{52} \\ \\ \therefore P(10\text{ OR Diamond)=}\frac{4}{52}+\frac{13}{52}=\frac{17}{52} \end{gathered}[/tex]

Thus, the probability of selecting a 10 or Diamond when a card is drawn from a standard deck of cards is: 17/52

Can someone please help me solve this pleaseeee, I’m struggling and depressed

Answers

Step-by-step explanation:

your teacher gave you the formula, the values, even did the tricky part by telling you that 63 months are 5.25 years.

all you need to do is put everything into the formula and calculate.

so, calm down, breathe and just use common sense :

1.

after 2 years (means t = 2) :

2000 × (1.025)^(2×2) = 2000 × (1.025)⁴ =

= 2000 × 1.103812890625 =

= $2,207.62578125 ≈ $2,207.63

as rounding to the nearest cent means rounding to 2 positions after the decimal point.

2.

after 63 months = 5.25 years (t = 5.25)

2000 × (1.025)^(2×5.25) = 2000 × (1.025)^10.5 =

= 2000 × 1.295986825... =

= $2,591.973651... ≈ $2,591.97

3.

$2,000

because, even t = 0 we have

2000 × (1.025)^(2×0) = 2000 × (1.025)⁰ = 2000 × 1 =

= $2,000

19. Which repon(s) represent students that enjoy wimming and tennis?TennisSwimmingAFHikingA BBDC. (BAND D)D. IA AND C)

Answers

To determine the regions that represent the students that enjoy swimming and tennis, we need to determine the intersection between the Swimming group and the Tennis group. This intersection is represented by the groups B and D. The correct answer is C.

find the x and y intercepts of 2x-5y=12 (write all answers as points)

Answers

[tex]\begin{gathered} x-\text{intercept is (6,0)} \\ y-\text{intercept is (}0,\text{ -}\frac{12}{5}) \end{gathered}[/tex]

Here, we want to find the x and y intercepts of the given line

We start by writing the equation of the line in the standard form

The standard form is;

[tex]y\text{ = mx + b}[/tex]

where m is the slope and b is the y-intercept

We have the equation re-written as;

[tex]\begin{gathered} 5y\text{ = 2x - 12} \\ y\text{ = }\frac{2}{5}x\text{ - }\frac{12}{5} \end{gathered}[/tex]

As we can see, we have the y-intercept at the point y = -12/5

The coordinate form at this point is (0,-12/5)

To find the x-intercept, we simply set y to zero

This is;

[tex]\begin{gathered} 0\text{ = }\frac{2}{5}x\text{ - }\frac{12}{5} \\ \\ \frac{2}{5}x\text{ = }\frac{12}{5} \\ \\ 2x\text{ = 12} \\ x\text{ = }\frac{12}{2} \\ x\text{ = 6} \end{gathered}[/tex]

The x-intercept is thus (6,0)

Given the following expression: 8x2 + 26x – 15 One of its simplified factors is: NOTE: If an answer is (x + 1), then do not use any spaces in your answer and be sure to include the parentheses. Your answer would look like this: (x+1)

Answers

We have the following:

[tex]8x^2+26x-15[/tex]

simplify:

[tex]\begin{gathered} 8x^2-4x+30x-15 \\ 4x(2x-1)+15(2x-1) \\ (2x-1)\cdot(4x+15) \end{gathered}[/tex]

The answer are (2x - 1) or (4x + 15)

Due to increased mailing costs, the new rate will cost publishers $50 million; this is 12.5% more than they
paid the previous year. How much did it cost publishers last year? Round to the nearest hundreds.

Answers

The amount it will cost the publishers last year is 44.4 million

How to calculate the amount it will cost the publishers?

The first step is to write out the parameters

The cost of mailing increased for the last one year

Due to this increase, it will cost the publishers $50 million for this current year

The increase is at the rate of 12.5%

The amount it will cost the publishers last year can be calculated as follows

= 12.5/100

= 0.125 + 1

= 1.125

The next step is to calculate last year cost

last year cost= 50/1.125

= 44.4 million

Hence the publishers spent 44.4 million last year

Read more on cost here

https://brainly.com/question/22697900

#SPJ1

help meeeeeee pleaseee !!!!

Answers

The equation of the line that passes through point (8,-1) and perpendicular to 8y = x - 16 is f(x) = -8x + 63.

What is the equation of line that passes through the given points and is perpendicular to the given line?

Given the data in the question;

Equation of line: 8y = x - 16Point: (8,-1)

First we determine the slope of the initial line using the slope intercept-form. y = mx + b

8y = x - 16

y = (1/8)x - 2

Compared with the slope intercept form,

Slope m = 1/8

Now, for the equation of line perpendicular to the initial line, its slope must be a negative reciprocal of the initial slope.

Hence, slope of the perpendicular line is;

Slope m = -1/1/8 = -8

To find the equation of the perpendicular line, we use the point slope formula.

y - y₁ = m( x - x₁ )

Plug in the slope m ( -8) and point (8,-1).

y - (-1) = (-8)( x - 8 )

y+1 = -8x + 64

y = -8x + 64 - 1

y = -8x + 63

Therefore, the equation of the perpendicular line is y = 8x + 63

Learn more about  equation of line here: brainly.com/question/2564656

#SPJ1

If 35% of your candies was 42 candies, how many candies do you have?

Answers

Answer:

120 candles

Step-by-step explanation:

42/35 = x/100 and solve for x

x = 120

Answer:

120

Step-by-step explanation:

35%/100=42/x

Please help! Will give brainliest!

Answers

f’(1)=-20
f’(-1 x 2) =-5

Maleri Designs sells cartons of cloth face masks ($18) and cartons of hand-sanitizer ($9) on eBay. One of their
customers, Mod World, purchased 21 cartons for $297. How many of cartons of each did Mod World purchase?
Check your answer. Hint: Let F= Face masks.

Answers

Answer:

F=12 C=9

Step-by-step explanation:

$18 12 times is $216 $9 9 times is $81 $216+81=$297

in a classroom challenge,students had to create a triangular pyramid using various items. Each group then use your measurements to remind the volume . which group found the volume of triangle pyramid with a base area of 16 square in?

Answers

[tex]\frac{1}{3}(\frac{8×4}{2})\times q\text{ (option D)}[/tex]Explanation:

Volume of a triangular pyramid = 1/3 × base area × height

We have been given base area as 16 square in

Volume of a triangular pyramid = 1/3 × 16 × height

We need to check the options for the expression whose result will give a base area of 16 square in.

From the options:

(8×3)/2 = 12

(11×4)/2 = 22

(16 ×18)/2 = 144

(8 × 4)/2 = 16

1/3 and the height is common to all options. The expression in bracket represent the base area.

Hence, the group that found the volume of triangle pyramid with a base area of 16 square in is

[tex]\frac{1}{3}(\frac{8 ×4}{2})\times q\text{ (option D)}[/tex]

I need it in slope intercept form and it has to be PERPENDICULAR to the equation it gives.

Answers

The equation of the line in slope intercept form  perpendicular to 6x - 2y = 12 and has the same y-intercept is  y = - 1 / 3 x - 6

How to find equation in slope intercept form?

The equation in slope intercept form can be represented as follows:

y = mx + b

where

m = slopeb = y-intercept

Therefore, the equation of the line is perpendicular to 6x - 2y = 12 and have the same y-intercept.

Hence, perpendicular lines follows the rule below:

m₁m₂ = -1

6x - 2y = 12

6x - 12 = 2y

y = 3x - 6

Hence,

3m₂ = -1

m₂ = - 1 / 3

Therefore, the slope of the line is - 1 / 3.

The y-intercept is -6

Therefore,

the equation of the line is y = - 1 / 3 x - 6

learn more on slope intercept form here:https://brainly.com/question/28380258

#SPJ1

Luisa bought 4.4 kilograms of apples. How
many ounces of apples did she buy? Use the
conversion rates 1 kilogram = 2.20 pounds
and 1 pound = 16 ounces. Round to the
nearest ounce.

Answers

Answer:

155

Step-by-step explanation:

4.4(2.2)=9.68

9.68(16)=154.88

Hi Please help me with math

Answers

Answer:12

Step-by-step explanation:

Which situation represents a proportional relationship?
O Renting a movie for $2 per day
O Renting a movie for $2 per day with a coupon for $0.50 off for the first day
O Renting a movie for $2 per day along with paying a $5 membership fee
O Renting a movie for $2 for the first day and $1 for each day after the first day

Answers

Answer:

renting a movie for 2 dollars a day

Step-by-step explanation:

the y does not repeat

Find the length of the minor axis of the ellipse described by the equation:x squared over 12 plus y squared over 13 equals 1

Answers

This equation of the ellipse can be modeled by

[tex]\frac{x^2}{a^2}+\frac{y^2}{b^2}=1[/tex]

The major axis is the y-axis and minor axis is the x-axis.

So, the length of the minor axis of this ellipse is "2a".

First, let's find "a",

[tex]\begin{gathered} a^2=12 \\ a=\sqrt[]{12} \end{gathered}[/tex]

The length of the minor axis is >>>

[tex]\begin{gathered} 2a \\ =2(\sqrt[]{12}) \\ =2\sqrt[]{12} \end{gathered}[/tex]Answer[tex]2\sqrt[]{12}[/tex]

Tank B, which initially contained 80 liters of water, is being drained at a rate of 2.5 liters per minute. For how many minutes has the water been draining when Tank B contains 75 liters of water?

Answers

We get that the function that models this situation is

[tex]L=80-2.5m[/tex]

where L is the liters the tank contains and m is the minutes that has passed. So we get:

[tex]75=80-2.5m\rightarrow m=\frac{-80+75}{-2.5}=2[/tex]

so the tank has been drained for 2 minutes

18. ALGEBRA Angles Q and R are supplementary. If m angle Q = 4x + 9 and m angle R = 8x + 3, what is the measure of each angle?

Answers

[tex]\begin{gathered} \text{When angles are supplementary, it means the sum of the Two angles is 180}^{\circ} \\ \text{ Q + R = 180}^{\circ} \\ (\text{ }4X\text{ + 9 ) + (8X + 3) = 180} \\ \text{ 4X + 9 + 8X + 3 = 180} \\ \text{ 12X + 12 = 180} \\ \text{ 12x = 180 -12} \\ \text{ 12X = 168} \\ \text{ X = }\frac{168}{12} \\ \text{ X = 14} \\ Angle\text{ Q = 4x + 9} \\ \text{ = 4 }\times\text{ 14 + 9 = }65^{\circ} \\ ^{^{\text{ }}}\text{ }Angle\text{ R = 8x + }3 \\ \text{ = 8 }\times\text{ 14 + 3} \\ \text{ =}112+3=115^{\circ} \end{gathered}[/tex]

Simplify the expression.

the expression negative six sevenths times k minus 7 plus the expression 5 plus one half times k

negative 19 over 14 times k plus negative 12
negative 5 over 14 times k plus negative 2
negative 5 over 9 times k plus negative 12
5 over 14 times k plus negative 2

Answers

The simplified form of the expression, negative six sevenths times k minus 7 plus the expression 5 plus one half times k is negative 5 over 14 times k plus negative 2.

Hence, the correct option is option (B).

What is an algebraic expression?

An algebraic expression is consists of variables, numbers with various mathematical operations,

The given expression is,

negative six sevenths times k minus 7 plus the expression 5 plus one half times k.

The expression can be written in mathematical term,

(-6/7)k - 7 + 5 + 1/2(k)

Simplify the expression,

(-6/7)k + 1/2(k) - 7 + 5

((-12 + 7)/14) k - 2

(-5/14) k - 2.

-(5/14)k + (-2)

The simplified form is, negative 5 over 14 times k plus negative 2.

To know more about Algebraic expression on:

https://brainly.com/question/19245500

#SPJ1

Question: Between what two conSecutive integers does v145 fall?{ } { }

Answers

We can find the answer to this question by using the known exact square roots of the following numbers:

[tex]\begin{gathered} \sqrt[]{144}=12 \\ \sqrt[]{169}=13 \end{gathered}[/tex]

And as you can see, the number 145 is between 144 and 169.

Thus, its square root, must be between the integer values of 12 and 13.

A+(b+c)=(a+b)+c what property is this? The options are as follows
Identity property of multiplication
Associative property of multiplication
Identity prop. Of addition
Multiplicative inverse prop.
Additive inverse prop.
Commutative prop of addition
Commutative prop of multiplication
Transitive property
Properties

Answers

Given:

The properties and their notations are given.

To match:

Explanation:

31. It is given that,

[tex]a+0=a[/tex]

Since zero is the additive identity.

So, the property is an identity property of addition.

32. It is given that,

[tex]a+b=b+a[/tex]

Here, the property is the commutative property of addition.

33. It is given that,

[tex]a\cdot(b\cdot c)=(a\cdot b)\cdot c[/tex]

Here, the property is an Associative property of multiplication.

34. It is given that,

[tex]a+(-a)=0[/tex]

Since -a is the additive inverse of a.

So, the property is the Inverse property of addition.

35. It is given that,

[tex]a\cdot1=a[/tex]

Since 1 is the multiplicative identity.

So, the property is an identity property of multiplication.

36. It is given that,

[tex]a\cdot(b+c)=ab+ac[/tex]

Here, the property is a distributive property of addition.

37. It is given that,

[tex]a\cdot b=b\cdot a[/tex]

Here, the property is a commutative property of multiplication.

38. It is given that,

[tex]a\cdot\frac{1}{a}=1[/tex]

Here, the property is an inverse property of multiplication.

39. It is given that,

[tex]a+(b+c)=(a+b)+c[/tex]

Here, the property is an Associative property of addition.

Final answer:

31. E

32. A

33. D

34. AC

35. AB

36.

Orlandis earned 2.5% interest on a bank balance of $80. What is the amount of interest earned?

Answers

Given

Bank balance = $80

Interest rate = 2.5%

Amount of interest earned = 2.5% of $80

Amount of interest earned = 2.5/100 of $80

Amount of interest earned = (2.5*80)/100

Amount of interest earned = 200/100

Amount of interest earned = $2.0

hence the amount of interest rate is $2.0

Polygon KLMN is drawn with vertices at K(1, 5), L(1, 0), M(−1, −1), N(−4, 2). Determine the image vertices of N′ if the preimage is rotated 90° counterclockwise. N′(−4, 2) N′(4, −2) N′(−2, −4) N′(2, 4)

Answers

ANSWER

N'(-2 , -4) Option C

EXPLANATION

Given:

A polygon KLMN with vertices at K(1, 5), L(1, 0), M(−1, −1), N(−4, 2).

Desired Outcome:

Image vertices of N′ if the preimage is rotated 90° counterclockwise

Answer: The correct answer is C

Step-by-step explanation:

I was correct on the quiz. WOWWWW


Equation: y =
Write an equation of the line that passes through the given point and is parallel to the given I
(-4, 2); y = 1/4x + 1

Answers

The equation of the line that passes through the point (-4,2) and the parallel to the line y = 1/4x + 1 is y = (1/4)x+3

The equation of the line parallel to the line is

y = 1/4 x +1

The slope intercept form is

y = mx + b

Where m is the slope of the line and b is the y intercept

By comparing the given equation and slope intercept form of the line

The slope of the line is m = 1/4

Then the point slope form is

[tex](y-y_1)= m(x-x_1)[/tex]

The line is passing through the point (-4,2)

Substitute the values in the equation

(y-2) = 1/4(x-(-4))

y-2 = 1/4(x+4)

y-2 = (1/4)x+1

y = (1/4)x+3

Hence, the equation of the line that passes through the point (-4,2) and the parallel to the line y = 1/4x + 1 is y = (1/4)x+3

Learn more about slope intercept form here

brainly.com/question/9682526

#SPJ1

Which of the following activities are examples of data gathering?Check all that apply.

Answers

Answer.

D.

Step by step explanation.

It's defined as the procedure of collecting, measuring, and analyzing accurate insights for research using standard validated techniques.

The most critical objective is ensuring that information rich and reliable data is collected dor statistical analysis so that data-driven decisions can be made for research

The number of people in thousands who own a cell phone is a function of the time in years starting in 1990 where p(t) = 20(1.075)^tGrowth or Decay?What is the initial amount of people who own cell phones?Determine the growth/decay rate.

Answers

Solution

[tex]\begin{gathered} 1)\text{ Answer, This is GROWTH } \\ 2)\text{ The initial amount of people wo own a cell phone is },\text{ means when t = 0} \\ P(t)=20(1.075)^t \\ p(t)\text{ = }20(1.075)^0 \\ p(t)\text{ = 20 }\times\text{ 1} \\ p(t)\text{ = 20} \end{gathered}[/tex][tex]\begin{gathered} 3)\text{ To }\det er\min e\text{ the growth/decay rate, we have} \\ p(t)=20(1.075)^t \\ p(t)=20(1+0.75)^t \\ \text{Answer, growth rate is: 0.75 =0.75\%} \\ \end{gathered}[/tex]

Suppose 72% of students chose to study French their freshman year, and that meant that there were 378 such students. How many students chose not to take French their freshman year?

Answers

The number of students who chose not to take French their freshman year is 147.

According to the question,

We have the following information:

72% of students chose to study French their freshman year.

Now, 72% of students is equal to 378.

Let's take the number of students to be x.

So, we have:

72x/100 = 378

72x = 378*100

x = (378*100)/72

x = 525

Now, we have to find the number of students who chose not to take French their freshman year:

(100%-72%)

28%

Now, we have to find the 28% of total number of students:

(28*525)/100

14700/100

147

Hence, the number of students who chose not to take French their freshman year is 147.

To know more about students here

https://brainly.com/question/17332524

#SPJ1

LOTS OF POINTS!!!!! The table of values represents a linear function g(x), where x is the number of weeks that have passed and g(x) is the balance in the bank account. Find the slope of the function.


A.
-500

B.
-1/100

C.
-100

D.
-1/500

Answers

Answer: easy it's A -500

The slope of the function (x) is -500!! :D

Sean and Darryl are racing on a track. Sean runs 6 miles per hour and gets a 0.25 mile head start. Darryl runs 0.7 mile per hour faster than Sean. If Darryl and Sean run the same distance, how many hours, x, do they run? 6x + 0.25 = 0.7x 0 6x - 0.25 = 3.7x 0 6x +0.25 = 6.7x D 6x + 0.25 = 4.7x

Answers

The relation between speed, distance and time is express as :

[tex]\text{ Sp}eed\text{ =}\frac{Dis\tan ce}{Time}[/tex]

Sean and Darryl are racing on a track.

Sean runs 6 miles per hour and gets a 0.25 mile head start.

Speed of Sean = 6

x is the time taken by Sean

So, Distance = speed x Time

Distance travel by sean = 6x

Since, Sean gets a 0.25 mile head start.

So, total distance travel = 6x + 0.25

Darryl runs 0.7 mile per hour faster than Sean,

Speed of darryl = 0.7 + Speed of sean

Speed of daryl = 0.7 + 6

Speed of darryl = 6.7 miles per hour

x is the time taken by Darryl

So, Distance = Speed x Time

Distance = 6.7x

Distance travel by Darryl = 6.7x

Since distance travel by darryl and sean is equal so,

6x + 0.25 = 6.7x

Answer : C) 6x + 0.25 = 6.7x

State a conclusion that seems reasonable 6+06, 8+0=8, 9 -9, 100-0-100 Conclusion:

Answers

Answer

The most obvious conclusion from this is that

Adding 0 to any number gives that number itself.

This concept is known as the additive identity property of 0.

Hope this Helps!!!

Other Questions
Which of the following is an example of a bond being traded on the secondary market? (1 point)O an investor purchases a bond from a corporationO an investor sells a bond to another investorO an investor purchases a bond from the U.S. TreasuryO an investor purchases a bond directly from a municipality A cookie factory uses 1/3 of a barrel of oatmeal in each batch of cookies. The factory used 2/3 of a barrel of oatmeal yesterday. How many batches of cookies did the factory make? The graph shows y varying directly as x according to the equation y = kx. What is the value of d?A d = kb + kdd = kb + kdB d = ka + kcd = ka + kcC d = b + kdd = b + kdD d = kb Write each of the following expressions as a power of two 4^-6 x 4^4 x (2^3 x 2^-4)^-1the x is a multiplication sign Algunos grupos indgenas no lucharon y se ____ con los espaoles. A curve representing groupings of customers who adopt new products over a period of time illustrates the ______. a professor wants to study the effectiveness of a new study tool for a course. there are 150150150 students registered for the course. the professor ranks the students according to cumulative average in the prerequisite course. for every 222 students, in order, from the list, the professor flips a coin to assign one student to use the new study tool and the other to use the previous study tool. what type of experiment design is this? Hey there Ms or Mr could you please help me out with this problem? Just a heads up, this is my assignment not a quiz. My assignment is about distance and midpoint formula. 1. Melody refers to the _______ of a piece of music. A. beatB. flowC. lyricsD. tune Measure of angle 1 = 110 degrees. You only need to type 110. What are the x intercept of the equation f(x)=3(x-7)(4x+2) What is the absolute and relative location of Russia?Full sentences. Two paragraph answer. No copy and paste because that is plagiarism. CalculatorWhat is the area of a rectangle with vertices atter your answer in the box.(0,-4).(-1, -3) (2, 0), and (3, 1)? which type of fiber could be considered the longest? group of answer choices postganglionic parasympathetic preganglionic parasympathetic preganglionic sympathetic postganglionic sympathetic Leadership traits _____.are natural and cannot be acquiredare not as important as personality and charmcan be acquiredare unnecessary for those not in leadership positions Which occurred after James Meredith won the right to legally attend the University of Mississippi? In the reaction between CH3CH2CH2CH2Cl and CH3ONa, the organic product is How does W.W. Jacobs build suspense when the Whites are waiting to see if their second wish will come true? Give examples from the storyPlease help how were Buddhist temples different from shinto shrines Are bacteria easier to observe on a plate or in a broth? How do the bacteria look in the plate compared to the broth?